Production of Dₒ₀ (2590) ^+ in B nonleptonic decays

In 2021, a new charm-strange meson, Dₒ₀ (2590) ^+, has been discovered, it is believed to be the Dₛ^+ (2¹S₀). However, its low mass and wide width are challenged by theoretical results. Given the small branching ratio of the current production channel, resulting in a small number of events and large errors. We suggest to search for the Dₒ₀ (2590) ^+ in the B meson nonleptonic decays, Bq D^ (*) qDₒ₀ (2590) ^+ (q=u, d), followed by Dₒ₀ (2590) ^+ D^*K. We find Br (Bq D^ (*) qDₒ₀ (2590) ^+) Br (Dₒ₀ (2590) ^+ D^*K) = (2. 162. 82) 10^-3 is very large, and the result is not sensitive to the mass of Dₒ₀ (2590) ^+. Due to large branching ratio, large amount of Dₒ₀ (2590) ^+ events are expected. This study is based on the framework of instantaneous Bethe-Salpeter equation, and the used relativistic wave functions for mesons contain different partial waves. The contributions of different partial waves are also studied.